The New Jersey Nets are on the clock in their courtship of LeBron James.

Nets billionaire owner Mikhail Prokhorov and rap mogul Jay-Z have arrived in Cleveland to make their pitch to the Cavaliers star, who is now a free agent.

Prokhorov also was accompanied by new Nets coach Avery Johnson and club president Rod Thorn. Jay-Z is a part owner of the Nets and a longtime friend of James.

The meeting Thursday was expected to last up to two hours at the office of James' business manager.

The New York Knicks are to make their presentation following the Nets.

The NBA's long-awaited free agency period opened early Thursday.